Overpull shifting tool

Details Overpull shifting tool Overpull shifting tool

1995-03-06

1996-08-27

Novosad, Stephen J.

Wells

Processes

With indicating, testing, measuring or locating

1663321, 1663324, 166381, 166386, E21B 3412, E21B 3414, E21B 2300

Patent

active

055491618

ABSTRACT:
A shifting tool is disclosed which allows movement of a shifting sleeve, to be followed by an additional force applied to ensure complete stroking of the shifting sleeve. This is accomplished by a shifting key to normally shift the shifting sleeve, followed by an overpull key which engages while the shifting key is still engaged. Once a predetermined force has been applied to the overpull key, the force applied from the surface is removed so that the tool may disengage from the sleeve. Subsequent manipulation, without necessarily any removal from the wellbore, if it does not result in a reengagement, provides feedback that the shifting sleeve has, in fact, shifted its full stroke. An emergency release is available which actuated by an overpull force beyond a predetermined level, applied while the overpull key is engaged for an emergency release from the shifting sleeve.

REFERENCES:
patent: 3874634 (1975-04-01), Gazda
patent: 4896721 (1990-01-01), Welch
patent: 4917191 (1990-04-01), Hopmann et al.
patent: 4928772 (1990-05-01), Hopmann
patent: 5090481 (1992-02-01), Pleasants et al.
patent: 5183114 (1993-02-01), Mashaw, Jr. et al.
patent: 5211241 (1993-05-01), Mashaw, Jr. et al.
patent: 5305833 (1994-04-01), Collins
patent: 5309988 (1994-05-01), Shy et al.
patent: 5325917 (1994-07-01), Szarka
patent: 5355953 (1994-10-01), Shy et al.
Baker Oil Tools, Baker Flow Control Shifting Tools, Procedures & Guidelines for Baker Model CMU and CMD Sliding Sleeve, date Unknown.
Baker Oil Tools, Standard Products Technical Unit Instruction and Procedure Information, date unknown.
Otis Subsurface Wireline Equipment, Sliding Side-Door Circulation Equipment, Composite Catalog, date unknown, p. 114.
Otis Subsurface Wireline Equipment, Positioning Tools, Composite Catalog, date unknown, p. 268.
Specialty Machine & Supply, Inc. pp. 56-58.
Hunt, Bottom Hole Assembly Equipment, Composite Catalog, date unknown, page unknown.
DJ-5/DJ-6 Drilling Jars, Composite Catalog, date unknown, p. 733.
ST-5 Shock Tool, Composite Catalog, date unknown, p. 732.
Griffith hydraulic/mechanical jar, Composite Catalog, date unknown, pp. 958-959.
Anadrill, Earthquaker Mechanical Drilling Jars, date unknown, pages unknown.
Bowen Drilling Tools, Bowen Hydromechanical Drilling Jars, Composite Catalog, date unknown, p. 426.
Bowen Surface Bumper Jar, Composite Catalog, date unknown, p. 407.

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